What does core mean?

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Author: Kevin Brown
Date:  
Subject: What does core mean?
A core file is the memory state of the system when a program crashed. They are
used to debug programs to find out why they crashed. Mostly I just delete them.

> I am running linux 6.1 and on my gnome desktop I see a yellow ball with a
> burning fuse and a sad face with a label underneath that says core. What
> does this mean and what do I do about it?